A three-ply surgical face mask was the most effective at reducing airborne droplet dispersal, the researchers found after reviewing the footage.
Researchers at the University of New South Wales in Australia looked at the effectiveness of single and double-layer cloth face coverings at reducing the spread of respiratory droplets that pass when an infected person speaks, coughs or sneezes. They then compared those results with that of a three-ply surgical face mask.
"A cloth face covering with at least two layers is preferable to a single-layer one," Prateek Bahl, School of Mechanical and Manufacturing Engineering, UNSW Sydney, Australia, and a lead author of the study, wrote in the findings. "Guidelines on home-made cloth masks should stipulate multiple layers."
The study comes as the Trump administration pushes for the public to adopt face coverings in an attempt to curb the spread of the coronavirus. The United States has the worst outbreak in the world with 4 million cases and at least 143,820 deaths, according to data compiled by Johns Hopkins University.response to the pandemic has also come under increasing scrutiny. In recent weeks, Trump has downplayed the threat of the virus, tying the surge in new cases to an increase in testing.
'To be sure, the researchers said a single-layer face covering is better than no face covering at all.'
Cloth masks don't work
The government should deliver masks to every household.
this is not new information, and the WHO guidelines for home made masks from April already advised regarding multiple layers. Multiple European countries also have guidelines for diy social masks and these guidelines also refer several layers.
But they make me feel like I’m doing something to save millions of lives though.
So is CNBC getting a commission from mask manufacturers now?